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Patent Searching and Data


Title:
PREPARATION FOR EXTERNAL USE FOR SKIN
Document Type and Number:
Japanese Patent JP2000072612
Kind Code:
A
Abstract:

To obtain the subject preparation not causing a photoallergy even in use in high concentration, having excellent skin lightening effect, of preventing and treating stain and freckles by including a specific cyclic compound.

This preparation comprises a cyclic compound of formula I [X is a connecting group; Y is any of connecting groups of formula II and formula III (J is a substituent group on a benzene ring; (m) is 1-5; G is a connecting group; Q is a condensed or substituted ring structure) or the like; (n) is a natural number] (with the proviso that cycloheptadiene of formula IV is omitted). Preferably, 0.0001-20 wt.% of the compound or its salt is contained in the objective preparation. The preparation is properly mixed, if required, with a component useful for a common cosmetic, quasi-drug, medicine, or the like, such as a skin lightening agent, humectant, oily component, or the like. The preparation is combined with a well-known skin lightening agent, antioxidant (e.g. ascorbic acid, an ascorbic acid derivative, a vitamin E derivative, or the like) to raise a skin lightening effect.


Inventors:
SAKAIDA TSUTOMU
KISHI MASATAKA
Application Number:
JP17090599A
Publication Date:
March 07, 2000
Filing Date:
June 17, 1999
Export Citation:
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Assignee:
NONOGAWA SHOJI YK
International Classes:
C07D295/02; A61K8/00; A61K8/30; A61K8/31; A61K8/49; A61Q1/00; A61Q1/04; A61Q1/12; A61Q19/02; C07D211/70; C07D335/12; C07D409/04; (IPC1-7): A61K7/00; C07D335/12; C07D409/04
Attorney, Agent or Firm:
Yoshiyasu Takahashi